package v1.chapter10.image;

import java.awt.*;
import javax.swing.*;

public class ImageTest {

	public static void main(String[] args) {
		EventQueue.invokeLater(() -> {
			JFrame frame = new ImageFrame();
			frame.setTitle("ImageTest");
			frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
			frame.setVisible(true);
		});
	}

}

class ImageFrame extends JFrame {
	public ImageFrame() {
		add(new ImageComponent());
		pack();
	}
}

class ImageComponent extends JComponent {
	private static final int DEFAULT_WIDTH = 300;
	private static final int DEFAULT_HEIGHT = 200;

	private Image image;

	public ImageComponent() {
		image = new ImageIcon("blue-ball.gif").getImage();
	}

	public void paintComponent(Graphics g) {
		if (image == null)
			return;

		int imageWidth = image.getWidth(null);
		int imageHeight = image.getHeight(null);

		g.drawImage(image, 0, 0, null);

		for (int i = 0; i * imageWidth <= getWidth(); i++)
			for (int j = 0; j * imageHeight <= getHeight(); j++)
				if (i + j > 0)
					g.copyArea(0, 0, imageWidth, imageHeight, i * imageWidth, j * imageHeight);
	}

	public Dimension getPreferredSize() {
		return new Dimension(DEFAULT_WIDTH, DEFAULT_HEIGHT);
	}
}